Device for discharging liquids from vessels



(No Model.) W. L. ROWLAND. DEVIUE FOR DISGHARGING LIQUID$ PROM V ESSELS.

No. 505,642. Patented Sept. 26, 1893.

FIGJ.

e 2' z S 8/ WIT Nags-Es: INVENTOR UNITED STATES PATENT OFFICE WILLIAM L.ROWLAND, OF PHILADELPHIA, PENNSYLVANIA.

DEVICE FOR DISCHARGING LIQUIDS FROM VESSELS.

SPECIFICATION forming part of Letters Patent No. 505,642, datedSeptember 26, 1893. Application filed December 8, 1892. Serial No.454,425. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM L. ROWLAND, a citizen of the United States,and a resident of the city and county of Philadelphia, and State ofPennsylvania, have invented certain new and useful Improvements inDevices for Discharging Liquids from Vessels, of which the following isa specification.

My invention relates to improvements in devices for discharging liquidsfrom vessels and more particularly to improvements in devices fordischarging aqua ammonia, &c., from the iron drums or barrels in whichit is usually shipped in bulk. At present it is'usual to discharge ironshipping drums by means of a suction pump or by a siphon. Both of thesemethods are objectionable. The first is not reliable for aqua ammonia,particularly in summer weather as the ammonia boils at a comparativelylow temperature; the second, in that the drums, which with theircontents are very large and heavy, have to be elevated upon skids inorder to obtain a sufficient elevation for the operation of the siphon.My device for discharging the drums consists of what I term a pressurefaucet which is screwed into the bung hole of the drum and which isfurnished with an air passage or passages through which air may beforced into the interior of the drum from a foot blower or othersuitable air compressing de-' vice and with a discharging pipe, throughwhich the liquid contents of the drum may be forced by the pressure ofair to the receiving vessel.

In the accompanyingdrawings forming part I of this specification and inwhich similar letters of reference indicate similar parts throughout theseveral views, Figure 1 is a side elevation partly broken away of a drumfurnished with my discharging apparatus and Fig. 2 an enlarged centralsectional elevation of the pressure faucet.

A. is the usual shipping drum, B. the bung hole of the drum 0. O bandssecured to the drum and at each side of the bung to protect this latterfrom injury when the drum is being rolled from one place to another.

The faucet D is constructed of five pieces, an upper part or cap a, aliquid discharge pipe I), a flanged pipe 6, a coupling e, for sc curingthe cap a, and flanged pipe e, together,

and a screw plug f, into the upper end of which the flanged pipe c isscrewed. A pipe ed with the upper part of the faucet by means of thehose or pipe cl, g is a check valve on this hose or pipe whicli'allowsairto pass to' the interior of the faucet but preventsits re turn to theblower.

h, is a stop cock on the outlet pipe 0 by means of which the flow ofliquid through this pipe may be regulated.

The bung holes of the shipping tanks are of a uniform size and arenecessarily small, and in order that the liquid outlet pipe I) may be ofsufficient capacity to empty the tank quickly it is necessary that it bearranged substantially as I have shown it, that 1s, placed within thefaucet D, preferably centrally located within this faucet, leaving anair space 2' all around it through which air from the pipe (1 may passto the interior of drum A. After the lower piece is screwed into thebung hole the upper part a may be turned in any required direction andthe union 6 then set up to make a perfectly tight joint between theupper part 09 and the stationary part c of the union. j is a packing toprevent leakage at the union and K a packing to prevent leakage betweenthelower part f and the bung.

In operating the device it is only necessary for the attendant tooccasionally operate the blowers E which will force enough air into thedrum A, and under sufiicient pressure, to cause the liquid in the drumto flow up through the pipe b and out through pipe 0 to the receivingvessel in a steady stream. The blower is operated again when the streamof liquid passing out pipecis seen to be becoming weak. The pipe 17 itwill be seen from Fig. 1 reaches nearly to the bottom of the drumso asto discharge all or nearly all the contents of the drum.

What I claim is 1. The combination in a faucet for dischargthe vessel, apipe, the lower end of which is adapted to be screwed into the upper endof said screw plug and the upper end of which is flanged, an upper partor cap adapted to be placed on the flanged pipe, and having an air inletat its side and a liquid outlet at its top, a coupling for securing theflanged pipe and cap together, a liquid discharge pipe secured to theliquid discharge opening in said cap and passing down through said cap,flanged pipe and screw plug, and devices substantially as described forcompressing air and conveying it to and through said air inlet in saidcap. 7

2. The combination in a device for discharging liquids from vessels of ahollow screw plug adapted to be screwed into the bung hole of thevessel, a flanged pipe projecting upwardly in said cap, allsubstantially as and for the 0 purpose set forth.

WILLIAM L. ROWLAND.

Witnesses MORRIS R. BooKIUs, CHAs. A. RUTTER.

